Deployment dynamics for flexible deployable primary mirror of space telescope with paraboloidal and laminated structure by using absolute node coordinate method

作     者：Bindi YOU Dong LIANG Xiangjie YU Xiaolei WEN Bindi YOU;Dong LIANG;Xiangjie YU;Xiaolei WEN

作者机构：School of Naval Architecture and Ocean EngineeringHarbin Institute of TechnologyWeihai 264209China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第4期

页      面：306-319页

核心收录：

学科分类：08[工学] 081105[工学-导航、制导与控制] 082503[工学-航空宇航制造工程] 0802[工学-机械工程] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：based on Project 51575126 the National Natural Science Foundation of China Projects 2013M541358 and 2015T80358 the China Postdoctoral Science Foundation 

主　　题：Deployable space telescope Deployment dynamics Flexible deformation Laminated mirror Paraboloidal structure 

摘      要：A nonlinear dynamic modeling method for primary mirror of Flower-like Deployable Space Telescope(F-DST)undergoing large deployment motion is proposed in this *** ensure pointing accuracy and attitude stability of the paraboloidal primary mirror,the mirror is discretized into equal thickness shell elements by considering shell *** the material nonlinear constitutive relation of flexible mirror is acquired using Absolute Nodal Coordinate Formulation(ANCF).Furthermore,the primary mirror of F-DST can be regarded as a clustered multi-body system,and its dynamic equations of elastic deformation and deployment motion are established by virtual work ***,the deployment motion of primary mirror by different driving conditions are simulated,the results show that the vibrations of mirrors that driven by elastic hinge device are more than that driven by servo *** addition,single sub-mirror deployment process will perturb the pointing accuracy of primary mirror,and the multiple sub-mirrors simultaneously deploying will seriously affect all the sub-mirrors surface accuracy because of the coupling ***,there are theoretical value and practical significance for the controlling surface accuracy and attitude accuracy of space telescope.